package main

import "fmt"

func main() {
	M := 3// 每隔3就划出
	var n ,s int =0,0
	print("请输入一个数字\n")
	fmt.Scanln( &n);
	for i:=2;i<=n ;i++  {
		s = (s+M)%i;
		fmt.Println( "================",s);

	}

	fmt.Println( "================",s+1);


}
